Hey, the link to Alby is broken.
Here is the updated link:
https://guides.getalby.com/user-guide/v/alby-account-and-browser-extension/alby-browser-extension/link-wallet/umbrel
In addition, you can now connect directly your Alby Hub to your Umbrel, have a a lightning address, as well as the browser extension connector. More about this on this same forum here: